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Magnetism and Matter - CBSE Class 12th NCERT Solution

Aug 6, 2013 17:22 IST

    Get, detailed solutions to the questions of the chapter Magnetism and Matter from NCERT textbooks. The objective is to helping students regarding the pattern of answering the question as per the cbse latest marking scheme. Cbse.jagranjosh.com provided you NCERT solutions for classes 12th math and science subjects.

    Some questions of this chapter are given here

    Q. Answer the following questions regarding earth’s magnetism:

    a) A vector needs three quantities for its specification. Name the three independent quantities conventionally used to specify the earth’s magnetic field.

    Sol. The three quantities are: horizontal component of earth’s magnetic field, magnetic declination and angle of dip.

    b) The angle of dip at a location in southern India is about 18º. Would you expect a greater or smaller dip angle in Britain?

    Sol. Great, because it increases from equator to poles.

    c) If you made a map of magnetic field lines at Melbourne in Australia, would the lines seem to go into the ground or come out of the ground?

    Sol. Coming out of the ground.

    d) In which direction would a compass free to move in the vertical plane point to, if located right on the geomagnetic north or south pole?

    Sol. Compass can point in any direction at poles.

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